A foamy substance blanketed the channel behind Frank Richey's home at 5316 Channel Drive near Montezuma on Friday morning. According to state officials, when organic materials decompose, the likelihood of foam increases in agitated water.

Along with a recent report of a blue green algae toxin in Grand Lake, some residents are concerned about the large amount of foamy substance in a few lake channels this summer. "The whole channel was completely filled - it was . . .